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Steller BG, Flock M, Fischer RC. From organotin hydrides to heteronuclear main group metal compounds: isolation of the first neutral bismuth/tin clusters. Chem Commun (Camb) 2021; 57:10095-10098. [PMID: 34518844 DOI: 10.1039/d1cc02538d] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
From conversions of Ar2SnH2 (Ar = Tripp, Dipp; Tripp = 2,4,6-Triisopropylphenyl, Dipp = 2,6-Diisopropylphenyl), and a bismuth(III) amide, Bi[N(SiMe3)2]3, we isolated the first representatives of mixed, uncharged Bi/Sn clusters, Bi8Sn3Ar6. Along with unprecedented bicyclo[2.2.0]hexanes, (HAr2Sn)2Sn2Bi4, these have been characterized by single crystal X-Ray diffraction, heteronuclear NMR, vibrational and UV-Vis spectroscopy. Quantum-chemical calculations were carried out in order to understand bonding within the isolated polyhedral compounds.
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Affiliation(s)
- Beate G Steller
- Institute of Inorganic Chemistry, Graz University of Technology, Stremayrgasse 9, Graz 8010, Austria.
| | - Michaela Flock
- Institute of Inorganic Chemistry, Graz University of Technology, Stremayrgasse 9, Graz 8010, Austria.
| | - Roland C Fischer
- Institute of Inorganic Chemistry, Graz University of Technology, Stremayrgasse 9, Graz 8010, Austria.
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2
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Gleditzsch M, Fuchs TM, Schäfer R. N-Doping at the Sub-Nanoscale: Dielectric and Magnetic Response of Neutral Phosphorus-Doped Tin Clusters. J Phys Chem A 2019; 123:1434-1444. [DOI: 10.1021/acs.jpca.8b12049] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Martin Gleditzsch
- Eduard-Zintl-Institut, Technische Universität Darmstadt, Alarich-Weiss-Straße 8, 64287 Darmstadt, Germany
| | - Thomas M. Fuchs
- Eduard-Zintl-Institut, Technische Universität Darmstadt, Alarich-Weiss-Straße 8, 64287 Darmstadt, Germany
| | - Rolf Schäfer
- Eduard-Zintl-Institut, Technische Universität Darmstadt, Alarich-Weiss-Straße 8, 64287 Darmstadt, Germany
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Yañez O, Báez-Grez R, Inostroza D, Rabanal-León WA, Pino-Rios R, Garza J, Tiznado W. AUTOMATON: A Program That Combines a Probabilistic Cellular Automata and a Genetic Algorithm for Global Minimum Search of Clusters and Molecules. J Chem Theory Comput 2018; 15:1463-1475. [DOI: 10.1021/acs.jctc.8b00772] [Citation(s) in RCA: 36] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Osvaldo Yañez
- Doctorado en Fisicoquı́mica Molecular, Facultad de Ciencias Exactas, Universidad Andres Bello, República 275 (2do piso), Santiago, 8370146, Chile
- Departamento de Ciencias Quı́micas, Facultad de Ciencias Exactas, Computacional and Theoretical Chemistry Group, Universidad Andres Bello, República 275 (3er piso), Santiago, 8370146, Chile
| | - Rodrigo Báez-Grez
- Doctorado en Fisicoquı́mica Molecular, Facultad de Ciencias Exactas, Universidad Andres Bello, República 275 (2do piso), Santiago, 8370146, Chile
- Departamento de Ciencias Quı́micas, Facultad de Ciencias Exactas, Computacional and Theoretical Chemistry Group, Universidad Andres Bello, República 275 (3er piso), Santiago, 8370146, Chile
| | - Diego Inostroza
- Departamento de Ciencias Quı́micas, Facultad de Ciencias Exactas, Computacional and Theoretical Chemistry Group, Universidad Andres Bello, República 275 (3er piso), Santiago, 8370146, Chile
| | - Walter A. Rabanal-León
- Departamento de Ciencias Quı́micas, Facultad de Ciencias Exactas, Computacional and Theoretical Chemistry Group, Universidad Andres Bello, República 275 (3er piso), Santiago, 8370146, Chile
| | - Ricardo Pino-Rios
- Laboratorio de Química Teórica, Facultad de Química y Biología, Universidad de Santiago de Chile (USACH), Avenida Bernardo O’Higgins 3363, Santiago, 9170022, Chile
| | - Jorge Garza
- Departamento de Química, División de Ciencias Básicas e Ingeniería, Universidad Autónoma Metropolitana-Iztapalapa, San Rafael Atlixco 186, Col. Vicentina, Iztapalapa, C.P. 09340 Mexico City, Mexico
| | - W. Tiznado
- Departamento de Ciencias Quı́micas, Facultad de Ciencias Exactas, Computacional and Theoretical Chemistry Group, Universidad Andres Bello, República 275 (3er piso), Santiago, 8370146, Chile
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Zhao J, Shi R, Sai L, Huang X, Su Y. Comprehensive genetic algorithm forab initioglobal optimisation of clusters. MOLECULAR SIMULATION 2016. [DOI: 10.1080/08927022.2015.1121386] [Citation(s) in RCA: 52] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Heard CJ, Heiles S, Vajda S, Johnston RL. Pd(n)Ag(4-n) and Pd(n)Pt(4-n) clusters on MgO (100): a density functional surface genetic algorithm investigation. NANOSCALE 2014; 6:11777-11788. [PMID: 25158024 DOI: 10.1039/c4nr03363a] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
The novel surface mode of the Birmingham Cluster Genetic Algorithm (S-BCGA) is employed for the global optimisation of noble metal tetramers upon an MgO (100) substrate at the GGA-DFT level of theory. The effect of element identity and alloying in surface-bound neutral subnanometre clusters is determined by energetic comparison between all compositions of PdnAg(4-n) and PdnPt(4-n). While the binding strengths to the surface increase in the order Pt > Pd > Ag, the excess energy profiles suggest a preference for mixed clusters for both cases. The binding of CO is also modelled, showing that the adsorption site can be predicted solely by electrophilicity. Comparison to CO binding on a single metal atom shows a reversal of the 5σ-d activation process for clusters, weakening the cluster-surface interaction on CO adsorption. Charge localisation determines homotop, CO binding and surface site preferences. The electronic behaviour, which is intermediate between molecular and metallic particles allows for tunable features in the subnanometre size range.
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Affiliation(s)
- Christopher J Heard
- Department of Applied Physics, Chalmers University of Technology, SE 412-96 Gothenburg, Sweden
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6
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Shayeghi A, Heard CJ, Johnston RL, Schäfer R. Optical and electronic properties of mixed Ag-Au tetramer cations. J Chem Phys 2014; 140:054312. [PMID: 24511945 DOI: 10.1063/1.4863443] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
We present experimental and theoretical studies of the optical response of mixed Ag(n)Au(+)(4-n) (n=1-3) clusters in the photon energy range ℏω = 1.9-3.5 eV. Absorption spectra are recorded by a newly built longitudinal molecular beam depletion spectroscopy apparatus providing lower limits to absolute photodissociation cross sections. The experimental data are compared to optical response calculations in the framework of long-range corrected time-dependent density functional theory with initial cluster geometries obtained by the unbiased Birmingham Cluster Genetic Algorithm coupled with density functional theory. Experiments and excited state calculations shed light on the structural and electronic properties of the mixed Ag-Au tetramer cations.
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Affiliation(s)
- A Shayeghi
- Eduard-Zintl-Institut, Technische Universität Darmstadt, Alarich-Weiss-Straße 8, 64287 Darmstadt, Germany
| | - C J Heard
- School of Chemistry, University of Birmingham, Edgbaston, Birmingham B15 2TT, United Kingdom
| | - R L Johnston
- School of Chemistry, University of Birmingham, Edgbaston, Birmingham B15 2TT, United Kingdom
| | - R Schäfer
- Eduard-Zintl-Institut, Technische Universität Darmstadt, Alarich-Weiss-Straße 8, 64287 Darmstadt, Germany
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Rohrmann U, Schwerdtfeger P, Schäfer R. Atomic domain magnetic nanoalloys: interplay between molecular structure and temperature dependent magnetic and dielectric properties in manganese doped tin clusters. Phys Chem Chem Phys 2014; 16:23952-66. [DOI: 10.1039/c4cp02994a] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
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8
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Orel S, Fournier R. Density functional theory and global optimization study of SnmPbn clusters (7 ⩽ m + n ⩽ 12, 0 ⩽ m/(m + n) ⩽ 1). J Chem Phys 2013; 138:064306. [DOI: 10.1063/1.4790607] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Shayeghi A, Johnston RL, Schäfer R. Evaluation of photodissociation spectroscopy as a structure elucidation tool for isolated clusters: a case study of Ag4+ and Au4+. Phys Chem Chem Phys 2013; 15:19715-23. [DOI: 10.1039/c3cp52160e] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
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Heiles S, Johnston RL, Schäfer R. Bismuth-Doped Tin Clusters: Experimental and Theoretical Studies of Neutral Zintl Analogues. J Phys Chem A 2012; 116:7756-64. [DOI: 10.1021/jp304321u] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Affiliation(s)
- Sven Heiles
- Eduard-Zintl-Institut
für
Anorganische und Physikalische Chemie, Technische Universität Darmstadt, Petersenstrasse 20, 64287 Darmstadt, Germany
| | - Roy L. Johnston
- School of Chemistry, University of Birmingham, Edgbaston, Birmingham B15
2TT, U.K
| | - Rolf Schäfer
- Eduard-Zintl-Institut
für
Anorganische und Physikalische Chemie, Technische Universität Darmstadt, Petersenstrasse 20, 64287 Darmstadt, Germany
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